Carbon is the primary alloying element present in the carbon steels. They contain 0.4% silicon and 1.2% manganese. Small quantities of molybdenum, chromium, nickel, aluminium, and copper are also present in these steels. AISI 12L14 carbon steel is known as the fastest machining bar product.
| Element | Content(%) |
|---|---|
| Iron, Fe | 97.91 - 98.7 |
| Manganese, Mn | 0.85 - 1.15 |
| Sulfur, S | 0.260 - 0.35 |
| Lead, Pb | 0.15 - 0.35 |
| Carbon, C | 0.15 |
| Phosphorous, P | 0.040 - 0.090 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 540 MPa | 78300 psi |
| Yield strength | 415 MPa | 60200 psi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80.0 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break | 10% | 10% |
| Reduction of area | 35% | 35% |
| Hardness, Brinell | 163 | 163 |
| Hardness, Knoop (converted from Brinell hardness) | 184 | 184 |
| Hardness, Rockwell B (converted from Brinell hardness) | 84 | 84 |
| Hardness, Vickers (converted from Brinell hardness) | 170 | 170 |
| Machinability (based on 100 machinability for AISI 1212 steel) | 160 | 160 |
| Production Route | Hot Rolled, Cold Rolled |
|---|---|
| Material Standard | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry |
| Size | Width from 100mm to 3000mm ; Length from 500mm to 12000mm |
| Thickness | 0.1mm to 400mm |
| Delivery Condition | As Rolled, Annealed, Quenched and Tempered, Normalized |
| Surface Finish | Plain, Brushed, Cladded |
ASTM A576 (12L14)
SAE J1397 (12L14)
SAE J403 (12L14)
SAE J412 (12L14)
ASTM A108
ASTM A29
SAE J414
1) Structures in Buildings, bridges, railway stations.
2) Fabrication of pipeline components & Industrial equipment.
3) Construction of automotive bodies, warehouses, shipping containers.
4) Commercial appliances, etc.